US3135347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust system
Assignee: Individual
•
Filing: 1962-02-07
•
Granted: 1964-06-02
•
Expires: 1982-02-07
Abstract
No abstract record available.
Inventors
- 👤 Louis M Vranyosovics
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:55
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; B; B60; B60K; B60K13/00; B60K13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1789971A
Cited
US1781503A
Cited
US2078420A
Cited
US2138001A
Cited
US2231586A
Cited
DE743439C
Cited
US2875841A
Cited
US2981351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |